Creevy returns to lead Jaguares in Sydney
Creevy, who takes over the captaincy from scrumhalf Martín Landajo, replaces Julián Montoya in the No.2 jersey.
Jaguares coach of Jaguares, Raúl Pérez made three other changes to the team that lost (30-31) to the Kings last week.
In the front row Enrique Pieretto comes in at tighthead prop, with Nahuel Tetaz moving to loosehead prop in place of the injured Lucas Noguera.
In the second row Benjamin Macome comes in for Matías Alemanno - with the lock also injured in last Friday's match against Kings.
The last change is in the backline, with Jerónimo De la Fuente returning at centre and Bautista Ezcurra dropping out.
It will be the first meeting between the two sides and the first match for the Jaguars on Australian soil.
Jaguares: 15 Joaquín Tuculet, 14 Matías Moroni, 13 Matías Orlando, 12 Jerome de la Fuente, 11 Emiliano Boffelli, 10 Nicolás Sánchez, 9 Martín Landajo, 8 Leonardo Senatore, 7 Juan Manuel Leguizamón, 6 Pablo Matera, 5 Benjamin Macome, 4 Guido Petti, 3 Enrique Pieretto, 2 Agustin Creevy (captain), 1 Nahuel Tetaz Chaparro.
Replacements: 16 Julián Montoya, 17 Santiago García Botta, 18 Ramiro Herrera, 19 Ignacio Larrague, 20 Rodrigo Báez, 21 Gonzalo Bertranou, 22 Joaquín Díaz Bonilla, 23 Santiago Cordero.
Date: Saturday, July 8
Venue: Allianz Stadium, Sydney
Kick-off: 19.40 (09.40 GMT; 06.40 Argentina time)
Referee: Ben O'Keeffe (New Zealand)
Assistant referees: Angus Gardner (Australia), Jordan Way (Australia)
TMO: Ian Smith (Australia)